161988741

素因数分解:

$3^4\times {\mathrm{509}}^1\times {\mathrm{3929}}^1$

素因数の和:4450

約数の個数: 20

約数和(自身を含む): 242520300

約数和(自身を除く): 80531559

約数列:

[1, 3, 9, 27, 81, 509, 1527, 3929, 4581, 11787, 13743, 35361, 41229, 106083, 318249, 1999861, 5999583, 17998749, 53996247, 161988741]

約数ペア:

[(1, 161988741), (3, 53996247), (9, 17998749), (27, 5999583), (81, 1999861), (509, 318249), (1527, 106083), (3929, 41229), (4581, 35361), (11787, 13743)]